Here is the free solution unlock guide for LG KH1200 CYON from Korea network (KTF), which I find on one forum, someone says it works well. So I share the method here with you, now just enjoy it!
LG KH1200 CYON unlock guide step by step:
- Press 277634#*# phone will enter Service Menu
- Select GCF Setting
- Select GCF On
- Phone reboot and unlocked working with any sim
Note:This Solution working with only old firmware version.
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